Monometallic Catalytic Models Hosted in Stable Metal–Organic Frameworks for Tunable CO<sub>2</sub> Photoreduction

Wang, Xiaokun; Liu, Jiang; Zhang, Lei; Dong, Long‐Zhang; Li, Shunli; Kan, Yuhe; Li, Dong‐Sheng; Lan, Ya‐Qian

doi:10.1021/acscatal.8b04887

Cited by 328 publications

(172 citation statements)

References 63 publications

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“…For the purpose of stabilizing ZIF-67 andp reventing hydrolysis, modifying is af easible measure, including doping guest hydrophobic molecules (e.g.,c arbon nanotubes, fluorinated molecules, and polyoxometalates in their pores). [27][28][29] Polyoxometalates (POMs) that are inorganic polynuclear anionic molecular metal-oxo clusters with the d-block transitional metals (i.e.,M o, W, Nb, V, Ta )w ith highest oxidation states, are considered to be tremendous photoelectric materials and has great potential in utilizing solar energy for the unique characteristic of the inherent analogouss emiconductor. [30][31][32] It is amazing that POMs not only improvesthe stability of ZIF-67, but also are the optimized photocatalytic reduction of N 2 materials owing to distinct characteristics:…”

Section: Introductionmentioning

confidence: 99%

Keggin‐Type Polyoxometalate‐Based ZIF‐67 for Enhanced Photocatalytic Nitrogen Fixation

Wang

et al. 2020

ChemSusChem

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The photocatalytic reduction of N2 to NH3 is considered a promising strategy to alleviate human need for accessible nitrogen and environmental pollution, for which developing a photocatalyst is an effective method to complete the transformation of this process. We firstly design a series of highly efficient and stable polyoxometalates (POMs)‐based zeolitic imidazolate framework‐67 (ZIF‐67) photocatalysts for N2 reduction. ZIF‐67 can effectively fix N2 owing to its porosity. Integration of POMs cluster contributes enormous advantages in terms of broadening the absorption spectrum to improve sunlight utilization, enhance the stability of the materials, effectively inhibit the recombination of photo‐generated electron–hole pairs, and reduce charge‐transfer impedance. POMs can absorb light to convert into reduced POMs, which have stronger reducing ability to provide ample electrons to reduce N2. The reduced POMs can recover their oxidation state through contact with an oxidant, which forms a self‐recoverable and recyclable photocatalytic fixing N2 system. The photocatalytic activity enhances with the increasing number V substitutions in the POMs. Satisfactorily, ZIF‐67@K11[PMo4V8O40] (PMo4V8) displays the most significant photocatalytic N2 activity with a NH3 yield of 149.0 μmol L−1 h−1, which is improved by 83.5 % (ZIF‐67) and 78.9 % (PMo4V8). The introduction of POMs provides new insights for the design of high‐performance photocatalyst nanomaterials to reduce N2.

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Section: Introductionmentioning

confidence: 99%

Keggin‐Type Polyoxometalate‐Based ZIF‐67 for Enhanced Photocatalytic Nitrogen Fixation

Wang

et al. 2020

ChemSusChem

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“…Wang et al established an isostructural stable MOFs for efficient CO 2 photocatalytic reduction. Three heterogeneous monometallic photolytic catalysts were designed along with single nodal transition-metal center (Cu II , Co II , and Ni II ): MOF-Cu ((Cu 3 (TCA) 2 (dpe) 3 (H 2 O) 3 ) n ), MOF-Co ((Co 3 (TCA) 2 (dpe) 3 (H 2 O) 6 ) n ), and MOF-Ni ((Ni 3 (TCA) 2 (dpe) 3 (H 2 O) 6 ) n ) [173].…”

Section: Central Metal Site Modificationmentioning

confidence: 99%

Recent Innovation of Metal-Organic Frameworks for Carbon Dioxide Photocatalytic Reduction

2019

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The accumulation of carbon dioxide (CO2) pollutants in the atmosphere begets global warming, forcing us to face tangible catastrophes worldwide. Environmental affability, affordability, and efficient CO2 metamorphotic capacity are critical factors for photocatalysts; metal-organic frameworks (MOFs) are one of the best candidates. MOFs, as hybrid organic ligand and inorganic nodal metal with tailorable morphological texture and adaptable electronic structure, are contemporary artificial photocatalysts. The semiconducting nature and porous topology of MOFs, respectively, assists with photogenerated multi-exciton injection and adsorption of substrate proximate to void cavities, thereby converting CO2. The vitality of the employment of MOFs in CO2 photolytic reaction has emerged from the fact that they are not only an inherently eco-friendly weapon for pollutant extermination, but also a potential tool for alleviating foreseeable fuel crises. The excellent synergistic interaction between the central metal and organic linker allows decisive implementation for the design, integration, and application of the catalytic bundle. In this review, we presented recent MOF headway focusing on reports of the last three years, exhaustively categorized based on central metal-type, and novel discussion, from material preparation to photocatalytic, simulated performance recordings of respective as-synthesized materials. The selective CO2 reduction capacities into syngas or formate of standalone or composite MOFs with definite photocatalytic reaction conditions was considered and compared.

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“…Progress in the efficient synthesis and design of CPs [ 7 , 8 ] prompted diverse applications in technologies crucial for civilization development. The gas and energy storage [ 9 , 10 ], intelligent drug delivery [ 11 ], production of smart catalysts and recent, remarkable advancements in tunable catalysis are among the most important of these applications [ 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

Transition Metal Complexes with Flufenamic Acid for Pharmaceutical Applications—A Novel Three-Centered Coordination Polymer of Mn(II) Flufenamate

et al. 2020

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Five complexes of Mn(II), Co(II), Ni(II), Cu(II) and Zn(II) with non-steroidal anti-inflammatory drug, flufenamic acid were synthesized: (1) [Mn3(fluf)6EtOH)(H2O)]·3EtOH; (2) [Co(fluf)2(EtOH)(H2O)]·H2O; (3) [Ni(fluf)2(EtOH)(H2O)]·H2O; (4) [Cu(fluf)2·H2O]; (5) [Zn(fluf)2·H2O]. All complexes were characterized by elemental analysis (EA), flame atomic absorption spectrometry (FAAS), Fourier-transform infrared spectroscopy (FTIR), and thermogravimetric analysis (TGA). The crystal structure of 1 was determined by the single crystal X-ray diffraction technique. It crystallizes in the triclinic space group P with three independent Mn(II) cations, six coordinated flufenamato ligands augmented with water and ethanol molecules in the inner coordination sphere. In this crystal, manganese atoms are multiplied by symmetry and form infinite, polymeric chains which extend along the [001] dimension. The Hirshfeld Surface analysis revealed changes in interaction assemblies around all metal centers. The antioxidant and antimicrobial activities were established for all complexes and free ligand for comparison. All compounds exhibit good or moderate bioactivity against Gram-positive bacteria and yeasts.

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Monometallic Catalytic Models Hosted in Stable Metal–Organic Frameworks for Tunable CO₂ Photoreduction

Cited by 328 publications

References 63 publications

Keggin‐Type Polyoxometalate‐Based ZIF‐67 for Enhanced Photocatalytic Nitrogen Fixation

Keggin‐Type Polyoxometalate‐Based ZIF‐67 for Enhanced Photocatalytic Nitrogen Fixation

Recent Innovation of Metal-Organic Frameworks for Carbon Dioxide Photocatalytic Reduction

Transition Metal Complexes with Flufenamic Acid for Pharmaceutical Applications—A Novel Three-Centered Coordination Polymer of Mn(II) Flufenamate

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Monometallic Catalytic Models Hosted in Stable Metal–Organic Frameworks for Tunable CO2 Photoreduction

Cited by 328 publications

References 63 publications

Keggin‐Type Polyoxometalate‐Based ZIF‐67 for Enhanced Photocatalytic Nitrogen Fixation

Keggin‐Type Polyoxometalate‐Based ZIF‐67 for Enhanced Photocatalytic Nitrogen Fixation

Recent Innovation of Metal-Organic Frameworks for Carbon Dioxide Photocatalytic Reduction

Transition Metal Complexes with Flufenamic Acid for Pharmaceutical Applications—A Novel Three-Centered Coordination Polymer of Mn(II) Flufenamate

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Product

Resources

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Monometallic Catalytic Models Hosted in Stable Metal–Organic Frameworks for Tunable CO₂ Photoreduction